3. How’s the woman doing?
A. She hasn’t got used to the life here.
B. She has made a lot of friends.
C. She has had a nice trip to Beijing.
查看答案
4. Why is the man in a hurry?
A. He’s going back home.
B. He’s late for class.
C. Someone’s waiting for him.
5. Where will Jack and Michael meet?
A. In the dorm.
B. At the school gate.
C. On campus.
DAC0832是 位的，是 级缓冲输入。
A. 8 一
B. 8 两
DAC0832是电压还是电流输出？
A. 电流
B. 电压
微信支付 
支付宝支付